这个是最新官方说法。摘录如下: 1 x1 F g2 `3 V K0 T9 c/ P @. w% L0 n4 A; |% mNot all children will get away with only one shot, however. The Public Health Agency's revised guidelines are as follows: 7 Q$ ]' e* M7 f# P6 l- A4 h2 Z! ]+ L6 `3 x& s
- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. * m+ t8 H! n3 B& u) g' C % l7 u1 H; b4 n" b; x! B' g- Children between three years and nine years old with chronic health conditions should get their first half-dose as quickly as possible. They should get a second half-dose at least 21 days later. , V [3 m- i8 U: J( r8 Q1 i8 V5 m6 G* K9 q/ D6 V
- Healthy kids between three years and nine years old should only receive a half-dose of H1N1 vaccine. They don't need to come back for a second shot.
alberta health 的说法 6 W) Z- i( l# B6 P0 U1 ]: Z/ O http://www.albertahealthservices.ca/901.asp#children - z7 U" k6 T+ B 4 b2 R" q* {+ C) jWill children need one or two vaccines? / ^2 a$ k4 G5 b1 Q8 @ H4 S- O& r . k: C7 d& Z7 nThe Public Health Agency of Canada (Nov 12, 2009) recommends: & ]; k* v8 |9 n w& Y6 q9 C" w
* Children from six months up to and less than three years old receive two half-doses of the H1N1 adjuvanted vaccine. There should be a minimum of 21 days between the two half doses. 5 t( Y/ ], V! i8 w6 x3 M" a' p4 S * Healthy children with no chronic health problems aged three years to under 10 years should receive one half dose of the H1N1 adjuvanted vaccine.+ [0 l* w& Y/ N R# j4 E
* Children aged three to under 10 years with chronic medical conditions should receive two half doses of adjuvanted H1N1 vaccine. There should be a minimum of 21 days between the two half doses. Y B# U* S o( N; n
* All children aged 10 years and older should receive one full dose adjuvanted vaccine.